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v occupy when the pipes are silentH Fig. 2 is a lilltvrran STATES PATENT Ori-reno CHARLES S. HASKELL, OF PHILADELPHIA, PEFNSYLVANIA, ASSIGNOR TO HILBORNE L. ROOSEVELT, OF NEV YORK, Y.

PNUMATIC ACTION FOR ORGANS.

SPECEFECATON forming part of Letters Patent No. 337,326, dated March 2, 1886. Application filed July 24, 18S-l. Serial Xo. 128,623. (No model.)

To @ZZ whom t may concern:

Be it known that I, CHARLES S. HASKELL, i a citizen of the United States, residing in the city and county of Philadelphia, in the State of Pennsylvania, have invented certain Improvements in Vind-Ohests for Pipe-Organs, of which the following is a specication.

My invention relates in general to the windchests of pipe organs, and relates specifically to the valves which control the escape of wind from out the wind-chambers of said windchest to the pipes, the improvement residing in a specific construction of valve, wind-chainbers, and wind-chest, hereinafter set forth.

The object of myimprovements isto dispense with the pneumatic bellows, and to render the construction of the wind-chest equally simple, less expensive, and more effective than when pneumatic bellows are employed.

The foregoing objects I attain by mechanical devices, a preferred form of a convenient embodiment of which is illustrated in the accompanying drawings and explained in the following description, the particular subjectmatter claimed being hereinafter definitely specified.

In the drawings, Figure l is a transverse sectional elevation through a wind-chest embodying my improvements, the pipe-valves being represented in the position which they similar view of the same contrivances, representing, however, the pipe-valves in the position which they occupy when the pipes are speaking.

Similar letters of reference indicate corre sponding parts. y

A is 'the wind-chest of a pipe-organ, and a are the wind-chambers, which extend longitudinally therethrough and are formed between the partition-bars ax.

P are the pipes, and p the pipe-ducts which lead from out the wind-chambers to said pipes. These pipe-ducts are formed in the partitionbars, which latter are longitudinally beveled off as to portions of their under sides, as will be understood by a reference to Fig. 2, in order to atford access to the wind from the windchambers beneath the beveled surfaces of the partitioned bars to said pipeducts.

B is the bottom board of the wind-chest.,

This bottom board is provided with a series of valveways, b', which communicate with the valve-throats b of the pallet-box.

Formed in the upper surface of the bottom board, partially beneath the beveled portions of the partitoned bars, and partially beneath a part of the wind-chambers, are what I term valve-seats, b2, the same being preferably circular depressions or excavations into the 6o substance of the upper surface of the bott-om board. Orifiees b3 in the base of the valvethroats place the latter in communication with the valVewa-y with which said throats are respectively aligned.

O are what I term diaphragmwaives,77 being webs of air-tight pliable material, textile, fibrous, or of other composition--and such, for instance, as leather, parchment, india-rubber, water -proof cloth, or the lil e- 7o which are disposed so as to completely cover the valve-seats, being made fast about all the edges thereof, and which are of sufficient pliability, or are applied in a sufficiently loose or baggy manner, to be capable of being, un- A der the iniiuence of the wind from the palletbox, forced up into the position represented in Fig. l, so as to close the throats ofthe pipe-ducts and exclude the air in the windchambers from access thereto, or else of being 8o forced down into the position represented in Fig. 2, under the inliuence of the wind in the wind-chambers, and so as to either wholly or partially close the orifices b3 and open com.- munication between the wind-chambers and the pipe-ducts. These diaphragm-valves may be applied either as separate suitably-shaped webs, one being connected with each valveseat, or as a continuous web, or as a series of continuous strips interposed beneath the par- 9o tition-bars and between the latter and the bottom board. It is proper for me to state, however, that diaphragm-valves as a mechanical contrivanee for controlling the pipes of an organ are not novel with me, and that to 9 5 such a valve, broadly, I lay no claim.

D is the pallet-box, which is in communication with a wind-trunk, (not shown,) and through the bottom of which extend to the bottom of the outer atmosphere valve-throats roo b, which midway of their depth are respectively in communication with the valveways b', formed in the bottom board of the windchest.

d d are respectively the upper and lower puppet Valves, or disk pallets7 as they are sometimes termed, which control the respective orifices of the valve-throats b, and the valve-stems or pallet-wiresf of which connect below with the secondary lever F, controlled by the spring f, and operated through the tracker G in the usual manner. Each of the wind-chambers ot' the chest is 2by means of suitable pallets in any usual manner in controllable communication with the wind-trunk and organ-bellows, there being no communication between the palletbox and said chambers, but the arrangement being such that an excess of wind-pressure 'exists in the palletbox over the pressure existing in the windchambers.

-Such being a description of a preferred form of a convenient embodiment of my invention,

existing, as stated, in the wind-chambers from finding vent through said pipeducts. The result of the foregoing position of parts, which with respect to any given series or register of pipesis under the control ofagiven key orkeys, is that the particular pipes so closed against the wind are silent. When, now, it is desired to cause any series of pipes to speal ,the key controlling the puppet-valves of the Valveway which is aligned with the pipes in question is depressed,and the position ot the puppets then .being that represented in Fig. 2, the air in the valveway vents to the atmosphere, and the wind-pressure in the windchambers blows down thediaphragm-valvesorclears them from their Contact with the beveled surfaces of the partitioned bars, and so places the pipes controlled by said valves in communication with the wind in their chambers, thereby causing said'pipes to speak.

Having thus described my invention, I claim- Y 1. The combination, in a pipe-organ, of a pallet-box, a wind-chest provided with partition-bars containingpipe-ducts and beveled oft' as to their under surfaces in the mannershown and described, a bottom board for the windchest provided with valve-seats, orifices, and valveways and diaphragm valves, substantially as set forth.

2. The eombinatiomin a pipe-organ, of a wind-chest provided with partitionbars which are beveled, as described. and which contain pipeducts opening upon the beveled surfaces, a bottom board containing valveways, oriliees opening from said valveways below the pipe-ducts of the partition-bars, valve-seats formed in connection with said orifices, and diaphragin-i-alves applied to said valve-seats and adapted to close either the pipe-ducts or the orifices of the valveways` substantially as and for the purposes set forth.

In testimony whereof I have hereunto signed my name this 9th day of July, A. D. 1884.

CHARLES S. HASKELL.

In presence of- JOHN W. Hams, JOHN ADATTE. 

